Wet-steaming Printing of Cotton Fabric Using Reactive Brilliant Red X-3B by Feeding Alkali with Foaming System
In order to reduce the water and energy consumption as well as the electrolyte and ammonia nitrogen discharge in printing with reactive dyes,the alkali was added onto the printed cotton fabric by pre-wetting with foam,followed by wet-steaming fixation.The alkali-resistant stability of the foam system was studied.The effects of steaming time and alkali dosage on the wet-steaming fixation of reactive brilliant red X-3B prints with application of alkali in foam form was investigated,and the comprehensive printing effects were analyzed as well.The results show that for foaming stock solution containing 4 g/L of APG10 and 12 g/L of CMC-Na,even though the pH value reaches 12.92,the drop emergence time and half-life period of decay of foam can still reach 16.8 minutes and 67.5 minutes respectively.The appropriate conditions for printing cotton fabric with 3％of reactive brilliant red X-3B using the aforementioned process were 40 g/L of sodium carbonate,steaming at 102℃ for 4 minutes.The cotton prints have good color build-up property,acceptable outline sharpness and color levelness,the color fastness to dry and wet rubbing can reach level 4～5 and level 3 or above,respectively.
Reactive Brilliant Red X-3BUrea-free PrintingFeeding Alkali with FoamingWet-steaming
NETL
NSTL
万方数据
